I guess it was the original cable. I just remember it having "made in Japan" written on it.

Anyway I already returned them and instead my K712 arrived to day.

My first impression is that they sound much clearer to the DT900. In comparison, voices on the Beyers seem like the singers are having cloth in front of their mouths. The bass however seems lacking a little, it sounds like I would have imagined the K701's bass after reading so much about them. I know the DT990 is known for it's strong bass, so I'll check if I can get used to the more neutral sound of the K712 or if it just won't be enough for me.

For the AKG x70x line, there's a bass port mod that'll give you more thump. Completely reversible. Might give you just enough to satisfy. Or you can take a look at the T90s. They're pretty similar to the DT990s. Slightly less treble and bass but a more balanced and neutral mids.

Hmm. Maybe a impedance mismatch? What are you driving it from? The DT990 Pros are 250 ohms, which should be fine on anything with an output impedance of 30 ohms. For the K712, with an impedance of 62ohms, you'll want something under 8 ohms.

I'm no expert on frequency response graphs, but according to this one, shouldn't the AKGs low end be much much stronger than they actually are?

I have not heard the K712s (just the Q701s and I own the K612s), but this graph more accurately represents what I would expect them to sound like based upon what others have said about them, as well as my understanding of the AKG Q/K7xx/K6xx series: http://www.innerfidelity.com/images/AKGK712.pdf

So no. Not much bass response. The whole series tends toward fairly neutral response or only a little bit of bass emphasis.

Quote:

Originally Posted by augenleet

I'm using the Sabre USB DAC 2 with an output impedance of 0.1 ohm.

Sure. That's low enough in impedance. However, the AKG Q/K7xx/K6xx tends to be particularly power hungry because of insensitivity and voltage variation. I don't know much about the Sabre USB DAC 2, but a budget DAC/amp may not power them well. However, that's probably not going to make a big difference on the bass in the way you are looking for.

I have not heard the K712s (just the Q701s and I own the K612s), but this graph more accurately represents what I would expect them to sound like based upon what others have said about them, as well as my understanding of the AKG Q/K7xx/K6xx series: http://www.innerfidelity.com/images/AKGK712.pdf

That's cool, looking at the raw, uncompensated graph, you can see that the bass response is indeed very flat.